At 09:09 AM 9/26/99 +1000, Paul wrote:
>> You could possibly filter the IR with a quartz window and then
>> collimate the sunlight with a lens.
>
>  Now where would you get such a thing?  A solid fuzed quartz lens?

Sure. Take a large piece of quartz, and grind it down with carborundum or
silicon carbide grit.

A simpler method would be to mount the eprom in a parabolic reflector.
Perhaps an old headlight reflector or large flashlight reflector would
work. Or you could make one out of aluminum foil.


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Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral@lcfltd.com
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